NN-2026:3-01
Angular template injection in Reports in Guardian/CMC before 26.1.0
| Advisory ID | NN-2026:3-01 |
|---|---|
| Topic | Angular template injection in Reports in Guardian/CMC before 26.1.0 |
| CWE Impact | CWE-1336: Improper Neutralization of Special Elements Used in a Template Engine |
| Issue date | 2026-05-19 |
| Affects | Guardian, CMC < v26.1.0 |
| CVE Name(s) | CVE-2025-40900 |
| CVSS Details | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:L |
| CVSS Score | 5.1 (CVSS v4.0) 4.6 (CVSS v3.1) |
| CVE Risk Level | Medium (CVSS v4.0) Medium (CVSS v3.1) |
| Risk Level for Nozomi customers | Medium |
Summary
An Angular template injection vulnerability was discovered in the Reports functionality due to improper validation of an input parameter.
Impact
An authenticated user with report privileges can define a malicious report containing an Angular template payload, or a victim can be socially engineered to import a malicious report template. When the victim views or imports the report, the Angular template executes in their browser context, allowing the attacker to modify application data, or disrupt application availability. Full XSS exploitation and direct information disclosure are prevented by the existing input validation and Content Security Policy configuration.
Affected Products
Guardian, CMC < v26.1.0
Workarounds and Mitigations
Use internal firewall features to limit access to the web management interface. Review all accounts with access to it and delete unnecessary ones.
Solutions
Upgrade to v26.1.0 or later.
Modification History
Related Links
Acknowledgements
We thank the following parties for their efforts:
- Stefano Libero, Andrea Palanca of Nozomi Networks Product Security team for finding this issue during an internal investigation
Contact
Nozomi Networks Product Security team can be reached at prodsec@nozominetworks.com.More contact details on the PSIRT page.